Even without a repro, could you open a bug? It's easier to loop in people and discuss there. Thanks!
On Sat, Jul 7, 2018 at 2:43 AM, Yvonne Chen <iyamad...@gmail.com> wrote: > Actually, not mprotect. madvise, in ReclaimInaccessibleMemory, with both > MADV_FREE and MADV_DONTNEED calls failing, both with error code EINVAL. > > On Friday, July 6, 2018 at 4:44:00 PM UTC-7, Yvonne Chen wrote: >> >> Still unable to produce a standalone repo, but I've narrowed down the >> issue - eventually, a call to mprotect fails with error code EINVAL, while >> trying to create a pre-code guard page. >> Probably means there's some system level configuration we have that's not >> playing well with v8? >> >> On Thursday, July 5, 2018 at 3:27:48 PM UTC-7, Yvonne Chen wrote: >>> >>> It's the case where "if (allocation.To(&free_space))" is false. >>> >>> I'm currently unable to reproduce this outside of our main codebase into >>> a standalone test file, but I'll file a bug if I manage to do so. >>> >>> On Wednesday, July 4, 2018 at 12:05:30 AM UTC-7, Jakob Gruber wrote: >>>> >>>> Could you check which 'perform_gc = true' case we reach? See >>>> >>>> https://cs.chromium.org/chromium/src/v8/src/heap/heap.cc?l= >>>> 1614&rcl=fe51067f43e7208d06977d5036726360a4539d7b >>>> >>>> Then please open a bug at http://crbug.com/v8/new. >>>> >>>> On Wed, Jul 4, 2018 at 12:18 AM, Yvonne Chen <iyam...@gmail.com> wrote: >>>> >>>>> Hi, >>>>> >>>>> I'm in the process of trying to upgrade from v8 6.0.186 to 6.7.288.46. >>>>> In heap.cc, the latter now has a check for !deserialization_complete_ >>>>> before throwing an OOM error. For some reason, my code can create one >>>>> Isolate just fine, but if I try to create another, I run into the error. >>>>> The comments in heap.cc suggest a low max old space size as a possible >>>>> reason, but my code uses all defaults for heap initial values and >>>>> everything worked fine on the previous v8 version, so that seems unlikely >>>>> to be the culprit. What other possible cases could result in >>>>> deserialization_complete_ being false at this point? Or maybe perform_gc >>>>> is >>>>> getting set when it's not supposed to be? >>>>> >>>>> Stack trace, not sure if it helps much though: >>>>> >>>>> <--- Last few GCs ---> >>>>> >>>>> >>>>> <--- JS stacktrace ---> >>>>> >>>>> >>>>> # >>>>> # Fatal process OOM in insufficient memory to create an Isolate >>>>> # >>>>> >>>>> >>>>> Thread 12 "threadname" received signal SIGILL, Illegal instruction. >>>>> [Switching to Thread 0x7ffff48eb700 (LWP 2646)] >>>>> v8::base::OS::Abort () at ../../src/base/platform/platfo >>>>> rm-posix.cc:381 >>>>> 381 V8_IMMEDIATE_CRASH(); >>>>> (gdb) bt >>>>> #0 v8::base::OS::Abort () at ../../src/base/platform/platfo >>>>> rm-posix.cc:381 >>>>> #1 0x00000000007bb68a in v8::Utils::ReportOOMFailure () >>>>> at ../../src/api.cc:432 >>>>> #2 0x00000000007bb887 in v8::internal::V8::FatalProcessOutOfMemory () >>>>> at ../../src/api.cc:400 >>>>> #3 0x000000000097231c in v8::internal::Heap::ReserveSpace () >>>>> at ../../src/heap/heap.cc:1611 >>>>> #4 0x0000000000ee7914 in >>>>> v8::internal::DefaultDeserializerAllocator::ReserveSpace >>>>> () at ../../src/snapshot/default-deserializer-allocator.cc:177 >>>>> #5 0x0000000000b87e93 in >>>>> v8::internal::StartupDeserializer::DeserializeInto >>>>> () >>>>> at ../../src/snapshot/startup-deserializer.cc:21 >>>>> #6 0x00000000009f8593 in v8::internal::Isolate::Init () >>>>> at ../../src/isolate.cc:3068 >>>>> #7 0x0000000000b87958 in v8::internal::Snapshot::Initialize () >>>>> at ../../src/snapshot/snapshot-common.cc:54 >>>>> #8 0x00000000007d1208 in v8::IsolateNewImpl () at >>>>> ../../src/api.cc:8367 >>>>> >>>>> >>>>> -- > -- > v8-users mailing list > v8-users@googlegroups.com > http://groups.google.com/group/v8-users > --- > You received this message because you are subscribed to the Google Groups > "v8-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to v8-users+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- -- v8-users mailing list v8-users@googlegroups.com http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to v8-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
